Location can't be beat. It's a quick walk away from the heart of Bangkok's Chinatown and surrounded with everything you'll need (e.g. ATM, convenience stores); while it's not on the same alley, all the essentials you might need are 5-10 mins away. The alley is also relatively quiet. Reasonably priced for what you're getting.
Be prepared to climb up steep stairs and don't wear socks as you might slip. The noise from the tank could be a bit bothersome too and would highly recommend installing blackout curtains or simple curtains to block off the light from outside. Bathroom is also al fresco; very interesting but could be unnerving for some as the shade doesn't completely cover the shower area.
Quite easy to find when you get the address right but Google maps would show two locations so go with the address for the cafe. Near all interesting Chinatown restaurants and shops which is the main asset of this place. Didn't meet the host but staff who welcomed us gave us sufficient information on the check in process and offered car service to get to the airport the ff day.